------------[ cut here ]------------
WARNING: CPU: 1 PID: 2414 at kernel/kthread.c:525 __kthread_bind_mask+0x35/0xc0 kernel/kthread.c:525
Modules linked in:
CPU: 1 PID: 2414 Comm: kworker/u8:8 Not tainted 6.10.0-syzkaller-09703-gd7e78951a8b8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Workqueue: netns cleanup_net
RIP: 0010:__kthread_bind_mask+0x35/0xc0 kernel/kthread.c:525
Code: 48 89 fb e8 4d 69 33 00 89 ee 48 89 df e8 23 53 04 00 31 ff 48 89 c5 48 89 c6 e8 66 64 33 00 48 85 ed 75 14 e8 2c 69 33 00 90 <0f> 0b 90 5b 5d 41 5c 41 5d e9 1d 69 33 00 e8 18 69 33 00 4c 8d ab
RSP: 0018:ffffc900089df868 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888061a43c00 RCX: ffffffff81582b0a
RDX: ffff888029e60000 RSI: ffffffff81582b14 RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff8b2b4768
R13: 0000000000000001 R14: ffff888026f78cc0 R15: ffff8880232354e0
FS:  0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb30c437d60 CR3: 000000000d97a000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 __kthread_bind kernel/kthread.c:538 [inline]
 kthread_unpark+0x147/0x1a0 kernel/kthread.c:631
 kthread_stop+0x177/0x670 kernel/kthread.c:707
 destroy_workqueue+0x154/0xaa0 kernel/workqueue.c:5793
 wg_destruct+0x24d/0x3d0 drivers/net/wireguard/device.c:257
 netdev_run_todo+0x763/0x12d0 net/core/dev.c:10753
 default_device_exit_batch+0x860/0xae0 net/core/dev.c:11889
 ops_exit_list+0x12b/0x180 net/core/net_namespace.c:178
 cleanup_net+0x5b7/0xbf0 net/core/net_namespace.c:640
 process_one_work+0x9c8/0x1b40 kernel/workqueue.c:3231
 process_scheduled_works kernel/workqueue.c:3312 [inline]
 worker_thread+0x6c8/0xf20 kernel/workqueue.c:3390
 kthread+0x2c4/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>